graphql-query-batcher
v1.0.1
Published
light weight query batcher for graphql
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Graphql Query Batcher
A light weight (<700 bytes) graphql query batcher for javascript.
Docs
QueryBatcher
Create a batcher client.
Parameters
fetcher
Fetcher The url to the graphql endpoint you are targeting.options
Options the options to be used by client (optional, default{}
)options.batchInterval
integer duration (in MS) of each batch window. (default 6) (optional, default6
)options.shouldBatch
boolean should the client batch requests. (default true) (optional, defaulttrue
)options.maxBatchSize
integer max number of requests in a batch. (default 0) (optional, default0
)options.defaultHeaders
boolean default headers to include with every request
Examples
const fetcher = batchedQuery => fetch('path/to/graphql', {
method: 'post',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify(batchedQuery),
credentials: 'include',
})
.then(response => response.json())
const client = new QueryBatcher(fetcher, { maxBatchSize: 10 })
fetch
Fetch will send a graphql request and return the parsed json.
Parameters
query
string the graphql query.variables
Variables any variables you wish to inject as key/value pairs.operationName
[string] the graphql operationName.overrides
Options the client options overrides. (optional, default{}
)
Examples
client.fetch(`
query getHuman($id: ID!) {
human(id: $id) {
name
height
}
}
`, { id: "1001" }, 'getHuman')
.then(human => {
// do something with human
console.log(human);
});
Returns promise resolves to parsed json of server response
forceFetch
Fetch will send a graphql request and return the parsed json.
Parameters
query
string the graphql query.variables
Variables any variables you wish to inject as key/value pairs.operationName
[string] the graphql operationName.overrides
Options the client options overrides. (optional, default{}
)
Examples
client.forceFetch(`
query getHuman($id: ID!) {
human(id: $id) {
name
height
}
}
`, { id: "1001" }, 'getHuman')
.then(human => {
// do something with human
console.log(human);
});
Returns Promise<Array<Result>> resolves to parsed json of server response
Default Options
const options = {
shouldBatch: true, // should we batch queries?
batchInterval: 6, // duration of each batch window (in MS)
maxBatchSize: 0, // max number of requests in a batch (0 = no max)
};
Requirements
The graphql implementation you are using must suppoprt batching! This means that your graphql endpoint should be able to take an array of requests and return an array of results.
To learn more read this: https://dev-blog.apollodata.com/query-batching-in-apollo-63acfd859862
To see an expmaple implementation in Golang, see https://github.com/nicksrandall/batched-graphql-handler