GraphQL Endpoint
DIA made API data easily accessibly through GraphQL endpoint.
You can use the following link to send GraphQL requests:
https://api.diadata.org/graphql/query
Also you can use a dedicated front-end to try out queries:
https://api.diadata.org/graphql/
Currently only tokens price feed data is available on GraphQL.
Example of schema that can be used for quoting data:
The schema will return the moving average price of ETH calculated every 5min (300 sec) by counting 2min trade blocks.
Query parameters rundown
FeedSelection
filtering options
FeedSelection
filtering optionsThere are a number of ways to filter out exchanges with DIA's GraphQL endpoints.
First of all, you should define the desired asset. DIA uses blockchain-address asset identification methodology. You can search for available assets and find out blockchain/address information in the DIA APP asset explorer.
Here's an example how to define FeedSelection query to return a price for a given range with all sources included:
There are number of ways to filter desired sources from the entire sources library for a given asset. We'll go over examples of these filters.
To select specific exchanges you can use the following format:
It is also possible to select specific pairs from a given exchange. The query would look as follows:
Another filtering option is to include sources based on available liquidity in the pool. For example if you select a liquidity threshold of $5 000 000, the response will calculate the price of an asset only by including liquidity pools from DEXes which have higher than $5 000 000 liquidity. The query looks as follows:
It is also possible to merge pairs selection with LiquidityThreshold
, which would result in such query:
One more option is to use two different assets to calculate one unified price. It might be useful for cross-chain assets, e.g. DAI on ETH mainnet & DAI on Arbitrum One. The query which can be used for such cases would look as follows:
Response fields
In the table below you can find the description of response fields:
In the next page you can find examples on how to query DIA's GraphQL endpoint in different programming languages.
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