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8 | import ReadableStream = NodeJS.ReadableStream;
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9 | import * as Promise from 'bluebird';
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10 |
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11 | export const streamPromise = (stream:ReadableStream) => new Promise((resolve, reject) => {
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12 | const buffer:Buffer[] = [];
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13 | stream.on('data', (data) => {
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14 | buffer.push(data);
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15 | });
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16 | stream.on('end', () => {
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17 | resolve(Buffer.concat(buffer));
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18 | });
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19 | stream.on('error', (err) => {
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20 | reject(err);
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21 | });
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22 | });
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30 |
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31 | export function getResourceBufferPromise(resource:ReadableStream|Buffer|string):Promise<Buffer> {
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32 |
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33 | if (typeof resource === 'string') {
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34 | return Promise.resolve(new Buffer(resource));
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35 | }
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36 |
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37 |
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38 | if (resource instanceof Buffer) {
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39 | return Promise.resolve(resource);
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40 | }
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41 |
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42 |
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43 | return this.streamPromise(resource);
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44 | }
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