370 lines
11 KiB
Markdown
370 lines
11 KiB
Markdown
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# API
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:::caution
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Our API is still in alpha — things may change or break at any time!
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:::
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Manifold currently supports a basic, read-only API for getting information about our markets.
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If you have questions, come chat with us on [Discord](https://discord.com/invite/eHQBNBqXuh). We’d love to hear about what you build!
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## List out all markets
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### `/v0/markets`
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- Example request
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```
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http://manifold.markets/api/v0/markets
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```
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- Example response
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```json
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[
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{
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"id":"FKtYX3t8ZfIp5gytJWAI",
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"creatorUsername":"JamesGrugett",
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"creatorName":"James Grugett",
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"createdTime":1645139406452,
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"closeTime":1647406740000,
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"question":"What will be the best assessment of the Free response feature on March 15th?",
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"description":"Hey guys, let's try this out!\nWe will see how people use the new Free response market type over the next month. Then I will pick the answer that I think best describes the consensus view of this feature on March 15th. Cheers.",
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"tags":[
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"ManifoldMarkets"
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],
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"url":"https://manifold.markets/JamesGrugett/what-will-be-the-best-assessment-of",
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"pool":null,
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"probability":0,
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"volume7Days":100,
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"volume24Hours":100,
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"isResolved":false,
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...
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}
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```
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- Response type: Array of `LiteMarket`
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```tsx
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// Information about a market, but without bets or comments
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type LiteMarket = {
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// Unique identifer for this market
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id: string
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// Attributes about the creator
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creatorUsername: string
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creatorName: string
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createdTime: number
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creatorAvatarUrl?: string
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// Market attributes. All times are in milliseconds since epoch
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closeTime?: number // Min of creator's chosen date, and resolutionTime
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question: string
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description: string
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tags: string[]
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url: string
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pool: number
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probability: number
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volume7Days: number
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volume24Hours: number
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isResolved: boolean
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resolutionTime?: number
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resolution?: string
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}
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```
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## Get information about one market
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### `/v0/market/[marketId]`
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- Example request
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```
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https://manifold.markets/api/v0/market/3zspH9sSzMlbFQLn9GKR
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```
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- <details><summary>Example response</summary><p>
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```json
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{
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"id": "3zspH9sSzMlbFQLn9GKR",
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"creatorUsername": "Austin",
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"creatorName": "Austin Chen",
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"createdTime": 1644103005345,
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"closeTime": 1667894340000,
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"question": "Will Carrick Flynn win the general election for Oregon's 6th District?",
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"description": "The Effective Altruism movement usually stays out of politics, but here is a recent, highly-upvoted endorsement of donating to Carrick Flynn as a high-impact area: https://forum.effectivealtruism.org/posts/Qi9nnrmjwNbBqWbNT/the-best-usd5-800-i-ve-ever-donated-to-pandemic-prevention\nFurther reading: https://ballotpedia.org/Oregon%27s_6th_Congressional_District_election,_2022\n\n#EffectiveAltruism #Politics",
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"tags": ["EffectiveAltruism", "Politics"],
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"url": "https://manifold.markets/Austin/will-carrick-flynn-win-the-general",
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"pool": 400.0916328426886,
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"probability": 0.34455568984059187,
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"volume7Days": 326.9083671573114,
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"volume24Hours": 0,
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"isResolved": false,
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"bets": [
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{
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"createdTime": 1644103005345,
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"isAnte": true,
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"shares": 83.66600265340756,
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"userId": "igi2zGXsfxYPgB0DJTXVJVmwCOr2",
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"amount": 70,
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"probAfter": 0.3,
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"probBefore": 0.3,
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"id": "E1MjiVYBM0GkqRXhv5cR",
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"outcome": "NO",
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"contractId": "3zspH9sSzMlbFQLn9GKR"
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},
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{
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"probAfter": 0.3,
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"shares": 54.77225575051661,
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"userId": "igi2zGXsfxYPgB0DJTXVJVmwCOr2",
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"isAnte": true,
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"createdTime": 1644103005345,
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"id": "jn3iIGwD5f0vxOHxo62o",
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"amount": 30,
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"probBefore": 0.3,
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"outcome": "YES"
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},
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{
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"shares": 11.832723364874056,
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"probAfter": 0.272108843537415,
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"userId": "PkBnU8cAZiOLa0fjxiUzMKsFMYZ2",
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"outcome": "NO",
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"amount": 10,
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"id": "f6sHBab6lbGw9PsnVXdc",
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"probBefore": 0.3,
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"createdTime": 1644203305863
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},
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{
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"userId": "BTksWMdCeHfDitWVaAZdjLSdu3o1",
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"amount": 10,
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"id": "Vfui2KOQwy7gkRPP7xc6",
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"shares": 18.12694184700382,
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"outcome": "YES",
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"createdTime": 1644212358699,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"probBefore": 0.272108843537415,
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"probAfter": 0.3367768595041322
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},
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{
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"probAfter": 0.3659259259259259,
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"userId": "BTksWMdCeHfDitWVaAZdjLSdu3o1",
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"probBefore": 0.3367768595041322,
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"amount": 5,
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"outcome": "YES",
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"createdTime": 1644433184238,
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"id": "eGI1VwAWF822LkcmOUot",
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"shares": 8.435122540124937
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},
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{
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"userId": "NHA7Gv9nNpb7b60GpLD3oFkBvPa2",
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"shares": 59.79133423528123,
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"amount": 50,
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"probAfter": 0.24495867768595042,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"createdTime": 1644693685223,
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"probBefore": 0.3659259259259259,
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"id": "fbU0DbmDWMnubggpQotw",
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"outcome": "NO"
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},
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{
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"amount": 25,
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"userId": "iXw2OSyhs0c4QW2fAfK3yqmaYDv1",
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"probAfter": 0.20583333333333328,
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"outcome": "NO",
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"shares": 28.3920247989266,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"createdTime": 1644695698202,
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"id": "k9hyljJD3MMXK2OYxTsR",
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"probBefore": 0.24495867768595042
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},
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{
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"createdTime": 1644716782308,
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"shares": 11.17480183821209,
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"probBefore": 0.20583333333333328,
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"userId": "clvYFhVDzccYu20OUc5NBKJyDxj2",
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"probAfter": 0.1927679500520291,
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"id": "yYkZ4JpLgZHrRQUugpCD",
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"outcome": "NO",
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"amount": 10
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},
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{
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"outcome": "YES",
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"amount": 30,
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"id": "IU2Hb1DesgKIN140BkhE",
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"shares": 58.893424111838016,
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"createdTime": 1644736846538,
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"probBefore": 0.1927679500520291,
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"userId": "BTksWMdCeHfDitWVaAZdjLSdu3o1",
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"probAfter": 0.3289359861591695
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},
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{
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"isSold": true,
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"userId": "5zeWhzi9nlNNf5C9TVjshAN7QOd2",
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"createdTime": 1644751343436,
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"outcome": "NO",
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"amount": 25,
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"probBefore": 0.3289359861591695,
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"id": "fkCxVH7THaDbEhyJjXVk",
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"probAfter": 0.2854194032651529,
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"shares": 30.022082866721178
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},
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{
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"probAfter": 0.2838618650900295,
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"id": "Ao05LRRMXVWw8d7LtwhL",
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"outcome": "NO",
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"probBefore": 0.2854194032651529,
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"shares": 1.1823269994736165,
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"userId": "pUF3dMs9oLNpgU2LYtFmodaoDow1",
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"amount": 1,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"createdTime": 1644768321860
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},
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{
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"id": "LJ8H8DTuK7CH9vN3u0Sd",
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"createdTime": 1644771352663,
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"shares": 113.5114039238785,
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"probAfter": 0.17510453314667793,
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"outcome": "NO",
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"amount": 100,
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"probBefore": 0.2838618650900295,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"userId": "ebX5nzwrs8V0M5UynWvbtcj7KAI2"
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},
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{
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"outcome": "YES",
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"amount": 20,
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"probBefore": 0.17510453314667793,
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"id": "TECEF9I5FqTqt6uTIsJX",
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"createdTime": 1644805061501,
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"shares": 43.88281646028875,
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"userId": "lHxg3179e4amWm5LJhJoJrcWK482",
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"probAfter": 0.24160019644701852
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},
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{
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"amount": -25.908367157311375,
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"id": "G3u2EzETWOyrGo15wtiQ",
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"outcome": "NO",
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"createdTime": 1644847494264,
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"sale": {
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"betId": "fkCxVH7THaDbEhyJjXVk",
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"amount": 25.862948799445807
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},
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"probAfter": 0.26957595409437557,
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"shares": -30.022082866721178,
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"probBefore": 0.24160019644701852,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"userId": "5zeWhzi9nlNNf5C9TVjshAN7QOd2"
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},
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{
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"createdTime": 1644853733891,
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"userId": "lbTXACtCnIacKDloKfXxYkDn0zM2",
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"amount": 10,
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"id": "z443uCkbYRLZW9QdXu1u",
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"probAfter": 0.25822886066938844,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"outcome": "NO",
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"shares": 11.655141043149968,
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"probBefore": 0.26957595409437557
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},
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{
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"userId": "BTksWMdCeHfDitWVaAZdjLSdu3o1",
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"amount": 15,
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"shares": 28.311399392675895,
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"id": "axoryV664uzHZ0jzWSXR",
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"outcome": "YES",
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"probBefore": 0.25822886066938844,
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"createdTime": 1644863335939,
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"probAfter": 0.3033936853512369
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},
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{
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"createdTime": 1644987330420,
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"id": "jHAYDdZRkDw3lFoDXdmm",
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"shares": 26.353902809992064,
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"userId": "BTksWMdCeHfDitWVaAZdjLSdu3o1",
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"probAfter": 0.34455568984059187,
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"probBefore": 0.3033936853512369,
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"amount": 15,
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"outcome": "YES"
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}
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],
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"comments": [
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{
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"contractId": "3zspH9sSzMlbFQLn9GKR",
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"userUsername": "Celer",
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"userAvatarUrl": "https://lh3.googleusercontent.com/a/AATXAJwp0vAolZgOmT7GbzFq7mOf8lr0BFEB_LqWWfZk=s96-c",
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"userId": "NHA7Gv9nNpb7b60GpLD3oFkBvPa2",
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"text": "It's a D+3 district, and the person we're pushing is functionally an outsider. I maxed my donation, but 25%, what I bought down to, implying even odds on both the general and the primary, seems if anything optimistic.",
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"createdTime": 1644693740967,
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"id": "fbU0DbmDWMnubggpQotw",
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"betId": "fbU0DbmDWMnubggpQotw",
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"userName": "Celer"
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}
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]
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}
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```
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</p>
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</details>
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- Response type: A `FullMarket`
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```tsx
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// A complete market, along with bets and comments
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type FullMarket = LiteMarket & {
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bets: Bet[]
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comments: Comment[]
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}
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type Bet = {
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id: string
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contractId: string
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amount: number // bet size; negative if SELL bet
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outcome: string
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shares: number // dynamic parimutuel pool weight; negative if SELL bet
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probBefore: number
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probAfter: number
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sale?: {
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amount: number // amount user makes from sale
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betId: string // id of bet being sold
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}
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isSold?: boolean // true if this BUY bet has been sold
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isAnte?: boolean
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createdTime: number
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}
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```
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### `/v0/slug/[marketSlug]`
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This is a convenience endpoint for getting info about a market from it slug (everything after the last slash in a market’s URL).
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- Example request
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```
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https://manifold.markets/api/v0/slug/will-carrick-flynn-win-the-general
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```
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- Response type: A `FullMarket` ; same as above.
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## Deprecated
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- Our old Markets API was available at [https://us-central1-mantic-markets.cloudfunctions.net/markets](https://us-central1-mantic-markets.cloudfunctions.net/markets)
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- We don’t plan on continuing to change this, but we’ll support this endpoint until 2022-03-30
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## Changelog
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- 2022-02-28: Add `resolutionTime` to markets, change `closeTime` definition
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- 2022-02-19: Removed user IDs from bets
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- 2022-02-17: Released our v0 API, with `/markets`, `/market/[marketId]`, and `/slug/[slugId]`
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